[填空题]PAL制V平衡广调幅器输入的被调制副载波在NTSC行为（）。

[单选题]"管线结垢 , 使管径收缩 , 降低了设备的使用 ( )
A.生命
B.寿命
C.生活
D.生产
"

[判断题] 变压器高压侧短路接地或采取绝缘遮蔽措施后,方可进入变压器室工作。
A.正确
B.错误

[判断题]避雷器可以单独加装辅助伞裙。（）

[单项选择]
Manners play an important part in making a favorable impression at the dinner table. Here are some general rules.
Napkin (餐巾) use
The meal begins when the host unfolds his or her napkin. This is your signal to do the same, so place your napkin on your lap. Unfold it completely if it is a small napkin, or in half, lengthwise (纵向地), if it is a large dinner napkin.
If you need to leave the table during the meal, place your napkin on your chair as a signal to your server that you will be returning. Once the meal is over, place your napkin neatly on the table to the right of your dinner plate. Do not refold it.
Use a napkin only for your mouth. Never use it for your nose, face or forehead.
Use of utensils (餐具)
Start with the knife, fork or spoon furthest from your plate, and work your way in, using one utensil for each course.
If soup is served, remember to

[单选题]行车前，驾驶员对车辆的转向、制动、照明装置等进行检查。（）
A.正确
B.错误
C.略
D.略
E.略
F.略

[单项选择]三相异步电动机用自耦降压启动7096的抽头降压启动时，电机的启动转矩是全压启动转矩的（）。
A. 36％
B. 49％
C. 70％
D. 100％

[简答题]我国传统体育文化的基本特征有哪些？

[单选题]下列哪项不属于指导性文件？（ ）
A.技术说明书
B.维护经验材料
C.维护规程
D.使用维护说明书

[判断题]对于火灾爆炸危险场所,必须采用防爆电气设备。
A.正确
B.错误

[判断题]专职安全生产管理人员对违章指挥、违章操作的，应当立即报告，但无权制止
A.正确
B.错误

[单项选择]

No one doubts the power of the media, and no one doubts the media is useful to those in power. Newspapers have vast (1) compared with any other published print, they are published frequently, and are (2) through wide distribution networks. For most people, they (3) the most substantial consumption of printed discourse (语段). (4) the powerful in society should attempt to control and influence them is (5) question.
(6) there is also a conflicting myth of the freedom of the press, that journalists are free to give an objective (7) of anything they think newsworthy. And that, (8) journalists on a particular newspaper may be constrained (限制) about what they can report, the reader has a choice because of the variety of newspapers on (9) Newspapers in this regard have been (10) as the third estate, an essential ingredient of democracy; the information they give is (11) to be sufficie
A. instantly
B. presumably
C. ultimately
D. constantly

[多项选择]普萘洛尔的降压机制是（）
A. 阻断血管平滑肌上β受体
B. 阻断血管运动中枢β受体
C. 阻断外周突触前膜β受体
D. 阻断心肌上β₁受体
E. 阻断肾球旁细胞上β₁受体

[填空题]{{B}}PART SIX{{/B}}
{{B}} · In most lines of the following text, there is one unnecessary word. It is either grammatically incorrect or does not fit in with the sense of the text.
· For each numbered line 41—52, find the unnecessary word. Some lines are correct. If a line is correct, write CORRECT.{{/B}}